PDF button goes to home page

Hi @tgray10! Nice to digitally meet you!
1. Similar to what’s described on https://wordpress.org/plugins/print-my-blog/#how%20do%20i%20change%20the%20color%20of%20the%20print%20buttons%3F, this CSS should work:

div.pmb-print-this-page a:hover{
color:black;
background-color:white;
}

Here’s some more info about the hover CSS selector: https://www.w3schools.com/cssref/sel_hover.asp

2. I’m guessing your site is doing some sort of redirect.
For example, on this post https://printmy.blog/2021/04/02/transparency-report-of-march-2021/ I have print buttons. They link to here: https://printmy.blog/?print-my-blog=1&post-type=post&statuses%5B0%5D=publish&rendering_wait=0&include_inline_js=1&shortcodes=1&columns=1&font_size=normal&image_size=medium&links=include&show_site_title=1&show_site_tagline=1&show_site_url=1&show_date_printed=1&show_title=1&show_date=1&show_categories=1&show_featured_image=1&show_content=1&format=pdf&pmb-post=5308 which is actually the homepage with a bunch of special information tacked onto the “query string” (everything after the question mark) that says which post to print, instead of showing the home page. It sounds like some plugin, server setting, or .htaccess file setting is removing the query string. Do you have a guess about which one it is? If not, can you share the list of active plugins?

Hmmm thanks for the plugin list. I’m most suspicious of Thrive Architect (although I can’t test it as it’s a paid plugin) as it’s probably overriding WordPress’ templating system which Print My Blog also overrides. Have you tried temporarily deactivating that one?

Also, what is the URL you are taken to for print my blog? (I know it’s not web accessible, but I’m wanting to know if you’re being redirected or what.)

And that’s from the homepage right? That’s disappointing…
I think the next step is to just try deactivating all other plugins and see if the problem goes away. If it still doesn’t work then it must be a problem with my plugin or your hosting setup.

Thanks for confirming… so weird… I’m going to make a version of the plugin that will temporarily spit out a lot of debugging information which will hopefully give a better clue what’s going wrong. Hopefully today but maybe Monday.

Hi @tgray10, ok I’ve made a version that outputs a lot of debug info in HTML comments. Depending on your server setup this may interfere with redirects, but we should only need this active for a little while in order to figure out what’s going wrong.
Here’s how to download and try this new version:
1. Download the new version from here: https://github.com/mnelson4/printmyblog/archive/refs/heads/BUG/debugging-code.zip
2. Go to your WordPress dashboard, click plugins, then “add new”, then “upload” and select the zip file you just downloaded
3. Deactivate the previous version Print My Blog
4. Activate the new version of Print My Blog

Please let me know once you have it active on the site, then I can take a look at the hidden debugging info.

Thanks @tgray10.
Ok it appears that somehow the hook template_include isn’t getting fired, which is where Print My Blog swaps out the homepage for its “print page”.
That must be done by a plugin, and I’m still very suspicious of Thrive Architect (other page builder plugins have had similar issues). I’m contacting them to see if I can get a copy of the plugin for testing (sometimes plugin authors are receptive to this, sometimes they aren’t.)
Would you mind temporarily deactivating all other plugins on the site? If the problem’s with my plugin I’d like to remove any possibility of another plugin mixing things up and making the situation more confusing.
But if you’d like to just go with another plugin for now (eg Print Friendly) I wouldn’t blame you. Debugging issues like this, while respecting the wp.org rules, can be tough